Description
The atyfb_ioctl function in drivers/video/fbdev/aty/atyfb_base.c in the Linux kernel through 4.12.10 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel stack memory by reading locations associated with padding bytes.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://marc.info/?l=linux-kernel&m=150453196710422&w=2 ↗
- https://usn.ubuntu.com/3583-2/ ↗
- http://www.debian.org/security/2017/dsa-3981 ↗
- https://github.com/torvalds/linux/pull/441 ↗
- https://usn.ubuntu.com/3583-1/ ↗
- http://www.securityfocus.com/bid/100634 ↗
- https://marc.info/?l=linux-kernel&m=150401461613306&w=2 ↗